AT65220B - Method of obtaining radiothor. - Google Patents
Method of obtaining radiothor.Info
- Publication number
- AT65220B AT65220B AT65220DA AT65220B AT 65220 B AT65220 B AT 65220B AT 65220D A AT65220D A AT 65220DA AT 65220 B AT65220 B AT 65220B
- Authority
- AT
- Austria
- Prior art keywords
- radiothor
- radiothorium
- thorium
- obtaining
- cathode
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 6
- 238000002360 preparation method Methods 0.000 claims description 3
- 239000003929 acidic solution Substances 0.000 claims 1
- 230000029087 digestion Effects 0.000 claims 1
- ZSLUVFAKFWKJRC-IGMARMGPSA-N 232Th Chemical compound [232Th] ZSLUVFAKFWKJRC-IGMARMGPSA-N 0.000 description 7
- 229910052776 Thorium Inorganic materials 0.000 description 7
- 239000000047 product Substances 0.000 description 5
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 229910052705 radium Inorganic materials 0.000 description 2
- HCWPIIXVSYCSAN-UHFFFAOYSA-N radium atom Chemical compound [Ra] HCWPIIXVSYCSAN-UHFFFAOYSA-N 0.000 description 2
- 229910000497 Amalgam Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- WABPQHHGFIMREM-BKFZFHPZSA-N lead-212 Chemical compound [212Pb] WABPQHHGFIMREM-BKFZFHPZSA-N 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052756 noble gas Inorganic materials 0.000 description 1
- 150000002835 noble gases Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229910052699 polonium Inorganic materials 0.000 description 1
- HZEBHPIOVYHPMT-UHFFFAOYSA-N polonium atom Chemical compound [Po] HZEBHPIOVYHPMT-UHFFFAOYSA-N 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- HCWPIIXVSYCSAN-YPZZEJLDSA-N radium-224 Chemical compound [224Ra] HCWPIIXVSYCSAN-YPZZEJLDSA-N 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
Landscapes
- Electrolytic Production Of Metals (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Gewinnung von Radiothor.
Das Verfahren betrifft die Gewinnung von Radiothor, und zwar insbesondere in Gestalt eines festhaftenden Niederschlages und besteht darin, dass man radiothorbaltige Lösungen elektrolysiert, wobei sich das Radiothor an der Kathode niederschlägt.
I, erch hat hereits kurzleibige Zerfallprodukte aus dem Thorium gewonnen, indem er den aktiven Niederschlag von Thorium in Säure löste und diese Lösung elektrolysierte. Der aktive Niederschlag des Thoriums enthält die Zersetzungsprodukte der gasförmigen Emanation, nämlich Thorium B, C und D, die sich in Säure lösen. Bei der Elektrolyse dieser Lösung scheidet sich ein Gemisch von Thorium Bund C an der Kathode ab. Diese Produkte haben nur eine kurze Lebensdauer und zerfallen schon nach weniger als elf Stunden.
Der aktive Niederschlag von Thorium enthält kein Radiothor und hiernach konnte sich auch bei der von Lerch vorgenommenen Elektrolyse kein Radiothor bilden, da sonst der an der liathode sich ansammelnde Überzug eine Lebensdauer von mehreren Jahren
EMI1.1
enthaltende Filtrat, welches nach dem Ausfällen von Thorium und Radiothor mittels Ammoniak gewonnen wurde, elektroiysiert und es ist zweifelhaft, ob Lerch hiebei Thorium X erhielt. Von den allein wertvollen Elementen mit längerer Lebensdauer bat man bisher ausser dem Polonium nur das Radium elektrolytisch herzustellen vermocht und dies auch nur als ein Amalgam (Frau Curie).
Jedenfalls konnte man weder aus den Versuchen von Lerch noch aus den Arbeiten von Frau ('urie die Möglichkeit der elektrolytischen Abscheidung von Radiothor aus dieses enthaltenden Lösungen folgern, da die einzelnen ZerfaHprodukte des Thoriums ebenso wie die Zerfallprodukte des Radiums ganz verschiedene chemischen und physikalische Eigenschaften haben, so dass sie 1I11t vollem Rechte als selbständige Kiemente angesehen werden.
Man findet unter ihnen Stoffe, welche den Edelgasen, den Erdalkalimetallen, den seltenen Erden und den Schwermetallen nahekommen. Man kommt daher zu ganz falschen Schlussfolgerungen, wenn man aus den Eigenschaften des einen Elemente ? auf diejenigen eines anderen schliessen will.
Zur Ausführung des vorliegenden Verahrens werden radiothorhaltige Präpärate, die beispielsweise durch Zerfall des Mesothors entstanden sind. oder radlothorhaltige Rückstände von der Mesothorgewinnung, beispielsweise solche Rückstande, welche nach der
EMI1.2
stärke (etwa I bis 3 Ampere und 2 bis 5 Voll) elektrolysiert, und zwar wird für die Anodo Platin, Kohle oder eine andere schwer angreifbare Substanz verwendet, während als Kathode Piatin, Silber bzw. andere Metalle und deren Legierungen dienen können. An der Kathode scheidet sich mit verhältnismässig geringen Verunreinigungen das Radiothor ans, das dann weiterverarbeitet werden kann. Die Lösungen des Radiothors können natürlich auch in anderer Weise als soeben angegeben erhalten werden.
Stark aktive Mesothorpräparate, die wenig sonstige oilitrolysierbare Verunreinigungen enthalten, werden, nachdem sie in Lösung gebracht sind, in oben angegebener Weise elektrolysiert, wobei man das in ihnen enthaltene Radiothor in hochkonzentrierter Form auf beiliebig kleinen Oberflächen abscheiden kann. Hiedurch ist die Möglichkeit gegeben, Radiothor auf Folien, Blechen und Drähten und dgl. in einer Reinheit abzuscheiden, wie sie zurzeit keine andere Methode ermöglicht.
EMI1.3
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Method of obtaining radiothor.
The method relates to the extraction of radiothor, in particular in the form of a firmly adhering precipitate and consists in electrolyzing solutions containing radiothor, with the radiothor being deposited on the cathode.
I have already obtained short-lived decay products from thorium by dissolving the active precipitate of thorium in acid and electrolyzing this solution. The active precipitate of thorium contains the decomposition products of the gaseous emanation, namely thorium B, C and D, which dissolve in acid. During the electrolysis of this solution, a mixture of thorium and C is deposited on the cathode. These products only have a short lifespan and disintegrate in less than eleven hours.
The active precipitation of thorium does not contain any radiothorium, and after this no radiothorium could form even with the electrolysis carried out by Lerch, since otherwise the coating that accumulates on the liathode would last for several years
EMI1.1
The filtrate obtained after precipitating thorium and radiothorium by means of ammonia was electrolyzed, and it is doubtful whether Lerch received thorium X from this. Of the only valuable elements with a longer lifespan, besides polonium, only radium has been asked to be able to produce electrolytically and this only as an amalgam (Mrs. Curie).
In any case, it was not possible to infer the possibility of electrolytic separation of radiothor from solutions containing it, neither from the experiments of Lerch nor from the work of Frau ('urie, since the individual decomposition products of thorium as well as the decomposition products of radium have very different chemical and physical properties , so that they can be viewed with full rights as independent Kiemente.
Among them one finds substances which come close to the noble gases, the alkaline earth metals, the rare earths and the heavy metals. One therefore comes to completely wrong conclusions if one uses the properties of one element? wants to infer those of another.
To carry out the present process, preparations containing radiothorium, which have arisen, for example, from the disintegration of the mesothorium, are used. or residues containing radlothorium from the recovery of mesothorium, for example those residues which are after
EMI1.2
strength (about 1 to 3 amps and 2 to 5 full) is electrolyzed, and platinum, carbon or another difficult to attack substance is used for the anodo, while platinum, silver or other metals and their alloys can serve as the cathode. The radiothor is deposited on the cathode with relatively little impurities and can then be processed further. The solutions of the radiothor can of course also be obtained in other ways than just indicated.
Highly active mesothorium preparations, which contain few other oilitrolysable impurities, are, after they have been brought into solution, electrolysed in the manner indicated above, whereby the radiothorium contained in them can be deposited in a highly concentrated form on arbitrarily small surfaces. This makes it possible to deposit radiothor on foils, metal sheets and wires and the like in a purity that is currently not possible with any other method.
EMI1.3
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT65220T | 1913-03-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT65220B true AT65220B (en) | 1914-06-10 |
Family
ID=3587157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT65220D AT65220B (en) | 1913-03-10 | 1913-03-10 | Method of obtaining radiothor. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT65220B (en) |
-
1913
- 1913-03-10 AT AT65220D patent/AT65220B/en active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2231595B2 (en) | Process for the purification of zinc sulphate solutions resulting from the leaching of zinc ores | |
| DE4243698C1 (en) | Electrolytic dissolving of platinum@, platinum@ metal impurities and platinum@ metal alloys - using electrolytic cell with platinum metal salt or acid in the hydrochloric acid in the anode and cathode chambers of the cell | |
| DE2539137A1 (en) | METHOD FOR ELECTROLYTIC EXTRACTION OF NICKEL AND ZINC, AND ELECTROLYSIS CELLS FOR THEREFORE | |
| DE1909757B2 (en) | PROCESS FOR THE CLEANING OF ANODES FOR ELECTROLYTIC PROCESSES, THAT CONSIST OF A BACKING OF A FILM-FORMING METAL AND A COATING OF PRECIOUS METALS, PRECIOUS METALLOIDS OR PRECIOUS METAL OXIDES CONTAINING MIXED OXIDES | |
| EP0609507B1 (en) | Electrolytic process for obtaining high purity platinum from impure platinum | |
| DE2340399A1 (en) | EXTRACTION OF COPPER AND ZINC FROM CHEAP NON-FERROUS SCRAP | |
| DE1266292B (en) | Process for the production of ammonium paratungstate by anodic oxidation of tungsten waste | |
| DE542781C (en) | Process for the electrolytic cleaning of solutions | |
| DE2060066B2 (en) | Process for the production of magnesium hydroxide and chlorine gas by the electrolysis of aqueous electrolytes, the majority of which contain dissolved magnesium chloride and alkali metal chloride | |
| DE679931C (en) | Process for the removal of non-ferrous heavy metals from objects made of iron coated with them | |
| DE269501C (en) | ||
| AT133870B (en) | Procedure for cleaning up liquids. | |
| DE1567928C3 (en) | Process for the electrolytic cleaning of caustic solutions | |
| DE2450862C3 (en) | Process for the production of gallium and indium from aqueous solution | |
| DE587737C (en) | Process for the electrolytic separation and recovery of palladium | |
| DE839935C (en) | Process for the production of metal powders | |
| DE460456C (en) | Process for the electrolytic refining of copper or copper alloys using an electrolyte containing copper chloride | |
| DE377144C (en) | Process for the electrolytic separation of alloys of silver | |
| DE2000852A1 (en) | Process for the preparation of a solution containing hydroxylammonium salts | |
| DE393964C (en) | Process for the electrolytic precipitation of silver | |
| DE105143C (en) | ||
| DE1592022C (en) | Process for removing metal ions from alkali hydroxide solutions | |
| DE1186843B (en) | Process for the dissolution of metallic plutonium | |
| DE53196C (en) | Manufacture of a copper-containing electrolyte | |
| DE102022211703A1 (en) | Method and device for separating iridium from at least one starting material |